Coal mine air door locking device

Abstract

The invention discloses a coal mine air door locking device, and relates to the technical field of air door locking. The coal mine air door locking device comprises a left air door, a right air door and push rods. The right air door is arranged on the right part of the left air door, and observation windows are arranged at the upper ends of the left air door and the right air door. Door lock handles are arranged at the middle inner side ends of the left air door and the right air door. Door end fixing plates are welded to the tops of the door lock handles, the push rods are arranged on the outer ends of the door end fixing plates, first hydraulic cylinders are arranged on the outer ends of the push rods, the outer ends of the first hydraulic cylinders are connected with rotating shafts, wall end fixing plates are arranged at the outer ends of the rotating shafts, a wind sensor is arranged at the bottom of the left air door, sealing plates are arranged at the tops and bottoms of the inner sides of the left air door and the right air door, a positioning groove is formed in the inner side end of the left air door, and a sealing positioning bump is arranged at the inner side end of theright air door. The opening and closing of the buffer and shock absorption are convenient, the air doors are automatically closed, the wind is intelligently detected, effective sealing and blocking can be achieved, and air leakage is prevented.

Description

technical field [0001] The invention relates to the technical field of air door locking, in particular to a coal mine air door locking device. Background technique [0002] Coal mine damper locking device is an indispensable product in the mine at present. Any place where a non-pressure damper is installed must require a damper interlocking device. The simple and straightforward feature of the damper interlocking device is to realize the interlocking of the damper to prevent the wind direction from scurrying. . At present, the mechanical lock is the best seller, because it can meet the requirements of the mine, and the installation is simple and the cost is low, so it is deeply loved by customers. [0003] The existing coal mine damper locking device cannot buffer and absorb shock when opening and closing, has low stability and is easy to be damaged. If you forget to close the door, it may cause air leakage and cause danger. Opening the door many times reduces the locking e...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a coal mine air door locking device, which solves the problem that the existing coal mine air door locking device cannot buffer and absorb shock when opening and closing, has low stability, is easy to be damaged, and may cause damage when the door is forgotten to close. Air leakage, danger, opening the door many times reduces the locking effect of the coal mine damper, insufficient positioning and sealing performance, and low novelty

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